Class PARTITION


  • public class PARTITION
    extends Protocol
    Protocol to simulate a partition. This can be done in 2 ways: send down a PARTITION event (with a boolean flag on or off, to start or end a partition), or by grabbing a reference to the protocol via the ProtocolStack and calling the methods startPartition() or stopPartition() directly. This can also be done via JMX.

    A partition simply discards all messages, but let's other events pass.

    Version:
    $Id: PARTITION.java,v 1.3 2007/08/27 11:05:32 belaban Exp $
    Author:
    Bela Ban
    • Field Detail

      • partition_on

        protected boolean partition_on
      • local_address

        protected Address local_address
    • Constructor Detail

      • PARTITION

        public PARTITION()
    • Method Detail

      • getName

        public java.lang.String getName()
        Specified by:
        getName in class Protocol
      • isPartitionOn

        public boolean isPartitionOn()
      • startPartition

        public void startPartition()
      • stopPartition

        public void stopPartition()
      • down

        public java.lang.Object down​(Event evt)
        Description copied from class: Protocol
        An event is to be sent down the stack. The layer may want to examine its type and perform some action on it, depending on the event's type. If the event is a message MSG, then the layer may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down(). In case of a GET_ADDRESS event (which tries to retrieve the stack's address from one of the bottom layers), the layer may need to send a new response event back up the stack using up_prot.up().
        Overrides:
        down in class Protocol
      • up

        public java.lang.Object up​(Event evt)
        Description copied from class: Protocol
        An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using down_prot.down() or c) the event (or another event) is sent up the stack using up_prot.up().
        Overrides:
        up in class Protocol